Flight physical for any drone pilot seems a bit restrictive.
Perhaps a statement of health from a local family Dr. would suffice. I can't imagine the FAA continuing this qualification.
People can & do fly certain aircraft (not drones), legally, without medicals. Why is a drone more restrictive. I realize this is probably a rule for aerial application however. 

Here's what planes you can fly without a medical:

https://aviation.stackexchange.com/questions/58025/in-the-united-states-is-there-any-way-i-can-fly-without-a-medical-certificate